This is a good idea, unfortunately it is still fairly easy to overcome, users simply open tabs with proxies. Leaving 20 tabs open in this way would allow them to 20x their mining returns compared to someone who just has 1 open. The button that only appears at the top of the hour means you have to physically act to get the coin and it's very difficult to scale that action to cheat the system. It is a little slower to earn this way but the payout rate will go up if usage is a lot lower.

I've never seen the blockchain as clogged as it has been the last 2 days, but once it drops again payouts and airdrops will make their way out.